3838256203405 has 8 divisors (see below), whose sum is σ = 4960208016792. Its totient is φ = 2834404580928.

The previous prime is 3838256203403. The next prime is 3838256203427. The reversal of 3838256203405 is 5043026528383.

It can be written as a sum of positive squares in 4 ways, for example, as 13423307881 + 3824832895524 = 115859^2 + 1955718^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3838256203405 - 2¹ = 3838256203403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3838256203403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29525047654 + ... + 29525047783.

It is an arithmetic number, because the mean of its divisors is an integer number (620026002099).

Almost surely, 2^{3838256203405} is an apocalyptic number.

It is an amenable number.

3838256203405 is a deficient number, since it is larger than the sum of its proper divisors (1121951813387).

3838256203405 is a wasteful number, since it uses less digits than its factorization.

3838256203405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59050095455.

The product of its (nonzero) digits is 4147200, while the sum is 49.

The spelling of 3838256203405 in words is "three trillion, eight hundred thirty-eight billion, two hundred fifty-six million, two hundred three thousand, four hundred five".